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Class 11 Chemistry के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ChemistryA solution contains 58.5 g sodium chloride and 180 g water. What is the approximate mole fraction of sodium chloride?Class 11Chapter 01: SolutionsLevel 6MediumChemistry20 g solute is dissolved in 180 g water. What are the mass percentages of solute and solvent respectively?Class 11Some Basic Concepts of ChemistryPercentage composition and empirical/molecular formulasLevel 4EasyChemistryA solution has solute mole fraction 0.02. If the solvent is water, what is the approximate molality?Class 11Chapter 01: SolutionsLevel 10HardChemistryWater contains 9 ppm dissolved oxygen. What is the approximate mass of oxygen in 500 mL water?Class 11Chapter 01: SolutionsLevel 6MediumChemistryThe mole fraction of water in a solution is 0.9. If moles of water are 9, how many moles of solute are present?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 7MediumChemistryA solution is made from 15 g solute and 85 g solvent. What is the mass fraction of solute?Class 11Chapter 01: SolutionsLevel 4EasyChemistry6 g solute is dissolved in 94 g solvent. What is the mass percentage?Class 11Chapter 01: SolutionsLevel 4EasyChemistryIf the mole ratio of solute to solvent is 1:4, what is the mole fraction of solute?Class 11Some Basic Concepts of ChemistryPercentage composition and empirical/molecular formulasLevel 5EasyChemistryThe mole fraction of solute is 0.1. If total moles are 40, how many moles of solvent are present?Class 11Chapter 01: SolutionsLevel 5EasyChemistryIn a binary solution, the mole fraction of solvent is 0.75 and moles of solute are 3. How many moles of solvent are present?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 2MediumChemistryThe mole fraction of solute is 0.1. If moles of solvent are 9, how many moles of solute are present?Class 11Chapter 01: SolutionsLevel 2MediumChemistryThe mole fraction of solute is 0.25. If total moles are 8, how many moles of solute are present?Class 11Chapter 01: SolutionsLevel 5EasyChemistryIf the moles of solute and solvent in a solution are 2 and 3 respectively, what is the mole fraction of solute?Class 11Chapter 01: SolutionsLevel 4EasyChemistry0.1 mol glucose is dissolved in 90 g water. What is the mole fraction of water?Class 11Chapter 01: SolutionsLevel 4MediumChemistryA solution contains 0.2 mol solute and 0.8 mol solvent. What is the mole fraction of solute?Class 11Chapter 01: SolutionsLevel 2EasyChemistryWhat is the approximate mole fraction of acid in a 36.5% by mass hydrochloric acid solution?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 6MediumChemistry10 g sodium chloride is dissolved in 90 g water. What is the mass percent of sodium chloride?Class 11Chapter 01: SolutionsLevel 4EasyChemistryWhich option gives the correct statement about mole fraction?Class 11Chapter 01: SolutionsLevel 3EasyChemistryA solution contains 2 moles solute and 8 moles solvent. What is the mole percent of solute?Class 11Chapter 01: SolutionsLevel 4EasyChemistryA solution has 25 total moles and a solute mole fraction of 0.16. How many moles of solute are present?Class 11Chapter 01: SolutionsLevel 2Easy